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dc.contributor.author
Pulschen, André A.
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Sastre, Diego Emiliano
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Machinandiarena, Federico
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Crotta Asis, Agostina
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Albanesi, Daniela
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de Mendoza, Diego
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Gueiros Filho, Frederico J.
dc.date.available
2018-07-26T19:16:02Z
dc.date.issued
2017-02
dc.identifier.citation
Pulschen, André A.; Sastre, Diego Emiliano; Machinandiarena, Federico; Crotta Asis, Agostina; Albanesi, Daniela; et al.; The stringent response plays a key role in Bacillus subtilis survival of fatty acid starvation; Wiley Blackwell Publishing, Inc; Molecular Microbiology; 103; 4; 2-2017; 698-712
dc.identifier.issn
0950-382X
dc.identifier.uri
http://hdl.handle.net/11336/53208
dc.description.abstract
The stringent response is a universal adaptive mechanism to protect bacteria from nutritional and environmental stresses. The role of the stringent response during lipid starvation has been studied only in Gram-negative bacteria. Here, we report that the stringent response also plays a crucial role in the adaptation of the model Gram-positive Bacillus subtilis to fatty acid starvation. B. subtilis lacking all three (p)ppGpp-synthetases (RelBs, RelP and RelQ) or bearing a RelBs variant that no longer synthesizes (p)ppGpp suffer extreme loss of viability on lipid starvation. Loss of viability is paralleled by perturbation of membrane integrity and function, with collapse of membrane potential as the likely cause of death. Although no increment of (p)ppGpp could be detected in lipid starved B. subtilis, we observed a substantial increase in the GTP/ATP ratio of strains incapable of synthesizing (p)ppGpp. Artificially lowering GTP with decoyinine rescued viability of such strains, confirming observations that low intracellular GTP is important for survival of nutritional stresses. Altogether, our results show that activation of the stringent response by lipid starvation is a broadly conserved response of bacteria and that a key role of (p)ppGpp is to couple biosynthetic processes that become detrimental if uncoordinated.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Ppgpp
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Cerulenine
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Stringent Response
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Rel_Bs
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Bacillus Subtilis
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The stringent response plays a key role in Bacillus subtilis survival of fatty acid starvation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-26T13:58:07Z
dc.journal.volume
103
dc.journal.number
4
dc.journal.pagination
698-712
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Pulschen, André A.. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Sastre, Diego Emiliano. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Machinandiarena, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Crotta Asis, Agostina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Albanesi, Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: de Mendoza, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Gueiros Filho, Frederico J.. Universidade de Sao Paulo; Brasil
dc.journal.title
Molecular Microbiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/mmi.13582
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/mmi.13582
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